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Q.

State true/ false:


The numbers 1 4 , 5 8 , 13 16   are in descending order.


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a

True

b

False 

answer is B.

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Detailed Solution

Here, we need to find whether the numbers 1 4 , 5 8 , 13 16   are in descending order or not.
To compare the rational numbers, their denominators should be the same.
LCM (4, 8, 16) = 16.
So, we convert each rational number to a rational number with denominator 16.
1 4 = 1×4 4×4 1 4 = 4 16  
5 8 = 5×2 8×2 5 8 = 10 16  
13 16 = 13×1 16×1 13 16 = 13 16  
We observe that 13 16 > 10 16 > 4 16 ,   which when converted in the form of given rational numbers is 13 16 > 5 8 > 1 4 .  
Thus, the given descending order is wrong.
Hence, the statement is false.
Therefore, the correct option is 2.
 

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State true/ false:The numbers 1 4 , 5 8 , 13 16   are in descending order.